I've just about had it with my '77 Motobecane 50L. After replacing just about everything on that bike, it still won't run. Here's the scoop:
I replaced the piston & rings. I now have over 150 pounds of compression. The coil is new and the points were replaced and set to .015. I have a big fat white/blue spark. The carb works perfectly and fuel is getting to engine. The muffler and exhaust port are both free of carbon. I have spark, compression and fuel, what the hec else is there? Other than setting the points, can a Motobecane engine be timed?
When I try to pedal start the engine, all I get are engine popping noises and backfiring. I don't know what else to do. If I can't get my Moby running soon, I'm gonna sell it. I love the bike, but even I have my limits. I can't afford to spend any more time or money on this bike.
If any Motobecane expert out there could impart some wisdom on me, I would be most thankful.